PT-2025-16692

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A problem in the Linux kernel has been identified where disconnecting a USB dongle leads to a NULL dereference Oops due to the bus interface being set to NULL. This issue arises because...

CVE-2025-21857

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: fix error handling causing NULL dereference tcfextsmisscookiebasealloc calls xaalloccyclic which can return 1 if the allocation succeeded after wrapping. This was treated as an error, with value 1 returned to...

Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2025-082 (ALASKERNEL-5.10-2025-082)

The version of kernel installed on the remote host is prior to 5.10.234-225.895. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2025-082 advisory. Integer Overflow or Wraparound vulnerability in Linux kernel on x86 and ARM md, raid, raid5 modules allo...

dlm: fix possible lkb_resource null dereference

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SUSE CVE-2025-21846

In the Linux kernel, the following vulnerability has been resolved: acct: perform last write from workqueue In 1 it was reported that the acct2 system call can be used to trigger NULL deref in cases where it is set to write to a file that triggers an internal lookup. This can e.g., happen when...

AZL-58511 CVE-2025-21857 affecting package kernel for versions less than 6.6.82.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: fix error handling causing NULL dereference tcfextsmisscookiebasealloc calls xaalloccyclic which can return 1 if the allocation succeeded after wrapping. This was treated as an error, with value 1 returned to...

DEBIAN-CVE-2025-21857

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: fix error handling causing NULL dereference tcfextsmisscookiebasealloc calls xaalloccyclic which can return 1 if the allocation succeeded after wrapping. This was treated as an error, with value 1 returned to...

CVE-2025-21857

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: fix error handling causing NULL dereference tcfextsmisscookiebasealloc calls xaalloccyclic which can return 1 if the allocation succeeded after wrapping. This was treated as an error, with value 1 returned to...

DEBIAN-CVE-2025-21846

In the Linux kernel, the following vulnerability has been resolved: acct: perform last write from workqueue In 1 it was reported that the acct2 system call can be used to trigger NULL deref in cases where it is set to write to a file that triggers an internal lookup. This can e.g., happen when...

AZL-58569 CVE-2025-21846 affecting package kernel for versions less than 5.15.179.1-1

In the Linux kernel, the following vulnerability has been resolved: acct: perform last write from workqueue In 1 it was reported that the acct2 system call can be used to trigger NULL deref in cases where it is set to write to a file that triggers an internal lookup. This can e.g., happen when...

AZL-58532 CVE-2025-21846 affecting package kernel for versions less than 6.6.82.1-1

In the Linux kernel, the following vulnerability has been resolved: acct: perform last write from workqueue In 1 it was reported that the acct2 system call can be used to trigger NULL deref in cases where it is set to write to a file that triggers an internal lookup. This can e.g., happen when...

CVE-2025-21846

In the Linux kernel, the following vulnerability has been resolved: acct: perform last write from workqueue In 1 it was reported that the acct2 system call can be used to trigger NULL deref in cases where it is set to write to a file that triggers an internal lookup. This can e.g., happen when...

UBUNTU-CVE-2025-21846

In the Linux kernel, the following vulnerability has been resolved: acct: perform last write from workqueue In 1 it was reported that the acct2 system call can be used to trigger NULL deref in cases where it is set to write to a file that triggers an internal lookup. This can e.g., happen when...

CVE-2025-21857

CVE-2025-21857 affects the Linux kernel net/sched code (cls_api). The root cause is error handling in tcf_exts_miss_cookie_base_alloc() calling xa_alloc_cyclic() that can return 1 (wraps successfully), which is treated as an error by tcf_exts_init_ex() and causes ext­s to be NULL. fl_change() the...

CVE-2025-21857

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: fix error handling causing NULL dereference tcfextsmisscookiebasealloc calls xaalloccyclic which can return 1 if the allocation succeeded after wrapping. This was treated as an error, with value 1 returned to...

CVE-2025-21857 net/sched: cls_api: fix error handling causing NULL dereference

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: fix error handling causing NULL dereference tcfextsmisscookiebasealloc calls xaalloccyclic which can return 1 if the allocation succeeded after wrapping. This was treated as an error, with value 1 returned to...

CVE-2025-21857 net/sched: cls_api: fix error handling causing NULL dereference

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: fix error handling causing NULL dereference tcfextsmisscookiebasealloc calls xaalloccyclic which can return 1 if the allocation succeeded after wrapping. This was treated as an error, with value 1 returned to...

CVE-2025-21846

CVE-2025-21846 (Linux kernel) : The acct(2) path could trigger a NULL dereference when writing to a file that triggers an internal lookup (e.g., /sys/power/resume) after the task has exited. The fix reorganizes the code so the final write executes from a workqueue while preserving the caller’s cr...

CVE-2025-21846 acct: perform last write from workqueue

In the Linux kernel, the following vulnerability has been resolved: acct: perform last write from workqueue In 1 it was reported that the acct2 system call can be used to trigger NULL deref in cases where it is set to write to a file that triggers an internal lookup. This can e.g., happen when...

CVE-2025-21846 acct: perform last write from workqueue

In the Linux kernel, the following vulnerability has been resolved: acct: perform last write from workqueue In 1 it was reported that the acct2 system call can be used to trigger NULL deref in cases where it is set to write to a file that triggers an internal lookup. This can e.g., happen when...